Alice Holt/Straits Level II plot - Atmospheric deposition

 

Atmospheric deposition (throughfall and open air) - Mean of fortnightly collection (1996 to 2005)

	Element / compound	Throughfall			Open air
		Average	Standard error	Sample size	Average	Standard error	Sample size
Volume (cm3)	n/a	466.9	8.644	2449	572.6	22.95	490
pH	n/a	5.23	0.30	689	1.86	0.053	143
Conductivity (μS/cm)	n/a	51.25	1.207	693	25.24	1.252	144
Alkalinity (μeq/l)	n/a	76.53	3.975	410	5.43	1.916	84
Macronutrients (mg/l)	N-NO3	0.62	0.026	682	0.58	0.040	139
	NH4	0.85	0.052	685	0.71	0.053	139
	N Total	1.60	0.062	377	0.95	0.102	79
	S-SO4	1.65	0.053	683	0.92	0.056	139
	Ca	1.65	0.050	683	0.54	0.043	140
	Mg	0.63	0.018	683	0.21	0.010	139
	K	5.13	0.163	683	0.31	0.029	140
	Na	2.90	0.076	683	1.62	0.085	140
	Cl	5.83	0.174	683	2.77	0.155	139
	P-PO4	0.35	0.024	683	0.03	0.005	141